References

Search the EC Materials Database for
descriptions of emergency contraception educational and promotional materials from the United
States and abroad, including client materials, provider education and training resources, and
media campaign materials.

American College of Obstetricians and Gynecologists.
Emergency Contraception. ACOG Practice Bulletin, Number 112.
Washington DC: The American College of Obstetrics and Gynecologists, May 2010. To order, call 508-750-8400. Also available in Obstetrics & Gynecology 2010;115:1100-1109.

Arowojolu AO, Okewole IA, Adekunle AO. Comparative evaluation of the
effectiveness and safety of two regimens of levonorgestrel for emergency contraception in
Nigerians. Contraception 2002;66:269-273.

Glasier A, Baird D. The effects of self-administering
emergency contraception. New
England Journal of Medicine 1998;339:1-4. (You may order a reprint.)Glasier A. Emergency postcoital contraception. New England Journal of Medicine
1997;33:1058-1064. (You may order a
reprint.)

Palomino WA, Kohen P, Devoto L. A single midcycle dose of levonorgestrel similar to emergency contraceptive does not alter the expression of the L-selectin ligand or molecular markers of endometrial receptivity. Fertil Steril. 2010;94:1589-94.

Piaggio G, Kapp N, von Hertzen H. Effect on pregnancy rates of the delay in the administration of levonorgestrel for emergency contraception: a combined analysis of four WHO trials. Contraception. 2011;84:35-39.